If 'bootefi hello' or 'bootefi selftest' can be executed depends on the
configuration.
If an invalid non-numeric 1st argument is passed to bootefi, e.g.
'bootefi hola', this string is converted to 0 and U-Boot jumps to
this typically invalid address.
With the patch the online help is shown instead.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
cmd/bootefi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 545cfecc12..4233d36b72 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -373,6 +373,9 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
saddr = argv[1];
addr = simple_strtoul(saddr, NULL, 16);
+ /* Check that a numeric value was passed */
+ if (!addr && *saddr != '0')
+ return CMD_RET_USAGE;
if (argc > 2) {
sfdt = argv[2];
--
2.14.2
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